The aim of the present study was to examine effects of black liquor-montmorillonite (BL-Mnt) complexes on the mechanical and thermal properties of epichlorohydrin rubber. Considering the stability effect of lignin and the barrier property of clay minerals, a significant enhancement of thermo-oxidative aging properties of ECO/BL-Mnt composites was expected. Poly (epichlorohydrin-co-ethylene oxide) (ECO) composites filled with BL-Mnt complex were prepared by mechanical mixing on a two-roll mill. The ECO/BL-Mnt composites were characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM), thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC). Both XRD and TEM data showed that the filler particles were well dispersed throughout the ECO/BL-Mnt composites. The tensile strength, elongation at break, and 100% modulus of the rubber composite were 14.0 MPa, 457%, and 3.9 MPa, respectively, at a 50% loading of BL-Mnt. The retention of tensile strength was 99% after thermal oxidative aging in an air-circulating oven for 72 h at 100°C. Evidence indicated that ECO/BL-Mnt composites with good mechanical properties and thermo-oxidative aging properties were obtained.

中文翻译：

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黑酒-蒙脱石配合物对环氧氯丙烷橡胶力学性能和热性能的影响

本研究的目的是检查黑液-蒙脱石 (BL-Mnt) 复合物对环氧氯丙烷橡胶的机械和热性能的影响。考虑到木质素的稳定性和粘土矿物的阻隔性，ECO/BL-Mnt 复合材料的热氧化老化性能有望显着提高。通过在两辊磨机上机械混合制备填充有 BL-Mnt 复合物的聚（表氯醇-共-环氧乙烷）（ECO）复合材料。ECO/BL-Mnt 复合材料使用 X 射线衍射 (XRD)、透射电子显微镜 (TEM)、热重分析 (TGA) 和差示扫描量热法 (DSC) 进行表征。XRD 和 TEM 数据均表明填料颗粒在整个 ECO/BL-Mnt 复合材料中分散良好。抗拉强度、断裂伸长率、在 50% 的 BL-Mnt 负载下，橡胶复合材料的 100% 模量和 100% 模量分别为 14.0 MPa、457% 和 3.9 MPa。在空气循环烘箱中 100°C 热氧化老化 72 小时后，拉伸强度的保持率为 99%。证据表明，获得了具有良好机械性能和热氧化老化性能的 ECO/BL-Mnt 复合材料。